Shanghai Daoqin Plastics Co., Ltd.

        PE tube/pipe production process in 经常会出现一 意想不 to quality issues, generally is due to equipment or raw materials issues 致. lower will according to more year PE pipe/tube generate experience introduction Common PE tube/pipe quality issues and quality issues causes and solution methods.

         pipe/tube surface 出现波纹:

         causes: 1 cooling separation 2密封圈 dimensions combined 适, formed phenomenon.

         solution methods: increase sleeve/set water amount or increase and sleeve/set between 距离. true 空槽密封圈 dimensions is small, if small, more or reduce 第一节 true true degree, increase 第二节 true true degree.

         surface 麻点(main/primary is inner 壁):

         causes: (1) raw materials in has (2)口摸 and 芯摸间 inner 壁清理不 dry (3) local temperature degree high, aging.

         solution methods: (1)检查 raw materials (2)清理 dry or 渡一段 time (3)检查 temperature degree device.

         surface 凹坑:

         causes: (1) raw materials 潮, bubbles (2)定径 sleeve/set water amount 不均.

         solution methods: (1) raw materials dry (2) adjustment water amount or more 换定径 sleeve/set

         surface 亮斑:

         causes: sleeve/set water amount 不足.

         solution methods: increase sleeve/set water amount or more water amount large sleeve/set

         inner outer toward coarse 糙:

         causes: raw materials water amount high.

         solution methods: raw materials dry 处理

         surface light 亮:

         causes: melt temperature degree combined or raw materials has issues

         solution methods: adjustment melt temperature degree or more raw materials

         outer surface 划痕:

         causes: sleeve/set, sheet/plate or 密封圈 upper has 沙石

         solution methods: 清理定径 sleeve/set, sheet/plate or 密封圈

         outer surface water 线:

         causes: sleeve/set local water 眼堵塞, formed water water amount large.

         solution methods: 清理定径 sleeve/set

         inner 壁沟槽(more 出现于壁 thick pipe/tube):

         causes: thick thick, melt difficult cooling, generate flow.

         solution methods: use in cooling system, reduce and temperature degree.

         pipe/tube thick 不均:

         causes: (1)口摸 or 芯摸螺栓松动, 口摸间隙 adjustment combined 适. (2)口摸 or temperature degree 不均, material 流不一致. (3)定径 sleeve/set and 口摸不 for in, separation or 筛网堵塞.

         solution methods: (1)紧 solid or adjustment 口摸间隙 (2)检查 add hot and temperature degree device (3) adjustment sleeve/set and for in separation or 筛网.

         fracture elongation low:

         causes: (1) raw materials 朔化不 good (2) orientation increase, degree increase

         solution methods: (1) adjustment process temperature degree, add strong/high 塑化效果 (2) increase and sleeve/set 距离.

        椭圆 degree large:

         causes: heavy force function

         solution methods: increase positive plant/unit

        PE tube/pipe production 厂家必 must 建立严格 raw materials evaluation 程序, selection combined raw materials according to raw materials testing 情况进行恰当 处理. high quality polyethylene (PE) pressure pipe/tube production for equipment comprehensive can force property very strong/high, pipe/tube production in equipment type must separation 调研论证, can selection to property comparison high equipment. pipe/tube production 厂家应该建立严格 操 as and process 规程并 add strong/high process and control force degree, can to control pipe/tube quality also combined reduce production cost 目. pressure pipe/tube process setting and production process in quality issues solution need a large amount of production experience, this requirements a large amount of 积累原始 data, 并进行 analysis and summary, 并指导 production, achieve product quality improve/increase.